大海捞针
- na.dredge for a needle in the sea
- 网络look for a needle in a haystack; Needle in a haystack; look for a needle in a bottle of hay

大海捞针
1.dredge for a needle in the sea; fish a needle out of the sea; fish for a needle in the ocean; locate a needle at the bottom of the sea; look for a needle in a haystack [bottle of hay; bundle of hay]; look for a needle in the ocean; search for a pin on the ocean bed
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